Tough Striploin at Costco!

I bought my first striploin from Costco last week.I was totally disappointed.Beef was tough center to outside!Being a pro chef i know my beef.They say there meat is triple A..,I have doubts.i returned it for full refund

I don't really understand the point of this post? You complain about purchasing tough meat from Costco, and was dissatisfied with their product and so you got a full refund for it. It's not like they sold you bad meat (i.e. rotten), or gave you bad customer service when you went for a refund either.

Welshrarebit isn't complaining about Costco's excellent customer relations policies. He's complaining about the quality of the meat that he bought. Isn't that exactly what people would want to hear on this board?

We have gotten tough beef frequently when paying for Prime and had no recourse except to complain with no compensation. I am not a pro chef thus I apply my limited knowledge and then take the word of the butcher at reputable shops. As noted Costco did the right thing which is over and beyond what many stores/markets would do. I do understand the disappointment and the inconvenience of ruining a dinner however, Costco did the best they could do, the right thing.